“Solicitor” is another name for a law professional in the UK and other countries. These professionals’ duties are to serve as advisors to their clients, draft documents, prepare cases for trial, and help with any other legal matter. A solicitor deals with clients in a primarily administrative setting and may appear in a lower court setting.

A barrister is another UK term for a legal professional whose duty is to represent their client’s best interest in court. Barristers most often deal with complex matters, appearing in courts, tribunals, and other litigation processes. However, barristers don't work in a client-facing setting - instead, instead, solicitors act as intermediaries between them and those they're representing.

There is no difference between a lawyer and an attorney when they’re working as in-house counsel. In this case, both must pass the state bar to be eligible to provide legal advice. In the US, these legal professionals work for corporations or other types of organizations.

Esquire (Esq.) is an honorary title for a lawyer who has passed the bar exam and therefore holds the license of the state’s bar association. It’s the equivalent of a Dr. or Ph.D. in other professions, but requires no approval from ABA to use. It’s included on business cards, signatures, or resumes. Furthermore, this title also is used in England for a male member of the gentry, ranking just below a knight.

The term “advocate” is used as a synonym for an attorney or a lawyer in the US without any additional legal significance. Advocates are authorized to give legal advice and may offer free consultations to specific groups they're advocating for. The term doesn’t take into account the lawyer vs. attorney differences with respect to how they practice law.